I would read the American Girl book to her and tell her she can ask questions as you go along. DD just turned 10 and she is very average for her age in terms of growth and I don't see any obvious signs of development, but pediatrician told me I should be assembling a "kit" for her to put in her locker, getting her the books (and he suggested the AG book as well), etc. I was thinking Whoa, she still looks like a little girl to me, but there was a little bump on the growth chart, in terms of height (personally I think it's because of the greatly reduced dose of her ADHD meds, not impending puberty).
